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Molecular mechanics and quantum chemical calculations unveil the combating effect of baicalein on human islet amyloid polypeptide aggregates
E. Srinivasan, S. Ravikumar, S. Venkataramanan, R. Purohit,
Published in Taylor and Francis Ltd.
Volume: 45
Issue: 18
Pages: 1538 - 1548
Formation of insoluble toxic aggregates by hIAPP polypeptide is found to be a core component for disease pathogenicity of patients suffering from type II diabetes. Naturally occurring polyphenols that possess anti-aggregation property are being majorly studied in the current scenario for treating various conformational diseases. Herein, we study the disaggregation mechanism of naturally occurring polyphenol baicalein, obtained from the roots of S. baicalensis and Indian trumpet flower on hIAPP dimer using quantum chemical calculation and discrete molecular dynamics. Our study reported that a drastic loss in the secondary structural propensity of hIAPP was seen upon binding of baicalein. Notably, the hydrophobic core and the phenolic groups present in the ends of baicalein molecule play a key role in inhibiting the aggregates formed upon binding to the amyloidogenic core region of hIAPP. Thus, our study provides a comprehensive understanding over the disaggregation effect of baicalein on hIAPP dimer from a computational point of view and thereby bridging the gap for future therapeutic strategy in designing the anti-aggregation compounds that inhibit hIAPP amyloids. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
About the journal
JournalData powered by TypesetMolecular Simulation
PublisherData powered by TypesetTaylor and Francis Ltd.